About PPopo

PPopo · 2021-05-31

have written this ARM assembly code. It is supposed to put the Fibonacci sequence numbers in R4 register. I'm trying to implement this C code in assembly:int fibbonacci(int n) { if(n == 0) return 0; else if(n == 1) return 1; ...

PPopo · 2021-04-04

Hello everyone,I'm just starting to learn assembly for the ARM architecture. I'm also in general a beginner with the assembly language I have just some minor experience with the x86 assembly but that's about it.I'm following a course on Udemy and I h...

PPopo · 2020-11-26

Hello,I have an STM32 Nucleo-64 board with STM32F446RE MCU.I want to talk to it's native bootloader stored in system memory and play around with it a bit(do some in application programming, etc) via the demonstrator program.Since the bootloader commu...

PPopo · 2020-11-05

Hello,I'm trying to establish SPI communication between STM32F4 discovery board with STM32F407 MCU and an Arduino uno. The arduino acts as a master and I'm using it to interface my board(which acts as slave) with the PC since I like arduino uno's ser...

PPopo · 2020-10-04

Hello,I'm learning DMA and using CubeMX to generate the configuration codes and SystemWorkbench(Eclipse) as editor to edit my application.To better grasp the concept of DMA I'm doing a small project in which I use USART in combination with DMA to rea...

PPopo · 2021-05-31

Hello. Thank you for your answer!I'm using Keil5. I guess that is the toolchain? :DAnd after reading your answer I have switched the orders of the registers when pushing them and now it works :D. Thank you! I was not aware they are pushed in ascendin...

PPopo · 2021-04-04

Thanks.

PPopo · 2020-11-19

Hello again,Sorry for the late reply I just was very busy at work and could not look into this.I got an oscilloscope and did some testing with it. Also created a new project from scratch for my board(STM32F407G disc 1) with CubeMX and configured SPI1...

PPopo · 2020-11-05

Probably not :D. I will try reducing the speed of the arduino to around 4Mhz. For the slave I assume I do not have to do anything as long as the SPI peripheral sits on a bus which has 21Mhz frequency correct? Or will that big difference in speeds som...

PPopo · 2020-10-07

Ok I will try your solution and let you know of the result, thanks. I'm using STM32F446RE MCU from NUCLE-F446RE sorry for not mentioning that.

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ARM assembly - Fibonacci Implementation: PUSH and POP not working as expected

ARM Cortex M4 assembly questions

Using Arduino Uno as USB to serial converter

STM32F4 discovery board and arduino SPI problem

DMA is configured in half mode, how do I configure it in full mode?

Re: ARM assembly - Fibonacci Implementation: PUSH and POP not working as expected

Re: ARM Cortex M4 assembly questions

Re: STM32F4 discovery board and arduino SPI problem

Re: STM32F4 discovery board and arduino SPI problem

Re: DMA is configured in half mode, how do I configure it in full mode?